Network Standards

N.W.P. products with a wide range of network standards is to guarantee constant quality products is the brand. trying to maintain constant quality and the incidence of this has led to products that Brandy reliable for large projects around the world are known.

These standards are part of the bottom of the page listed.


UL Standard

At UL, safety is our mission, and product safety testing and certification is one way we deliver that mission every day. The thoroughness, precision and technical expertise that UL brings to our product safety business are just a few of the reasons UL is a trusted, valued partner in solving global compliance challenges and helping to bring safer products to market.

ISO 9001:2008

The terms International Standards and ISO standards used in these listings denote all standards-type documents, including guides, international standardized profiles, recommendations, technical reports, technical trends assessments, etc. The document type is indicated in its reference number. The following bibliographic information is given for each document:

  • ISO/ASTM joint ISO and ASTM (American Society of Testing and Materials) International Standard
  • ISO/CIE: joint ISO and CIE (International Commission on Illumination) International Standard
  • ISO/HL7 joint ISO and HL7 (Health Level Seven) International Standard
  • ISO/IEEE: joint ISO and IEEE (Institute of Electrical and Electronics Engineers) International Standard
  • ISO/OECD joint ISO and OECD (Organisation for Economic Cooperation and Development) International Standard


The European Commission describes the CE mark as a “passport” that allows manufacturers to circulate industrial products freely within the internal market of the EU. The CE mark certifies that the products have met EU health, safety and environmental requirements that ensure consumer and workplace safety. All manufacturers in the EU and abroad must affix the CE mark to those products covered by the “New Approach” directives in order to market their products in Europe. Once a product receives the CE mark, it can be marketed throughout the EU without undergoing further product modification.
An important document related to CE is the Declaration of Conformity (D.O.C.). Basically it’s a piece of paper which a company authority must sign to say that the device meets the requirements of the Directive. The D.O.C. must include a list of any standards used to justify the claim of compliance with the Directive. Youll see the Declaration of Conformity packed with certain Crown products, either separately or as part of the operation manual.


ETL Testing Laboratories has been conducting electrical performance and reliability tests since 1896. Intertek Testing Services (ITS) acquired ETL from Inchcape in 1996. ITS is recognized by OSHA as a Nationally Recognized Testing Laboratory (NRTL), just as Underwriters Laboratories (UL), Canadian Standards Association (CSA) and several other independent organizations are recognized.
ITS tests products according to nearly 200 safety and performance standards. The ETL Listed Mark and C-ETL Listed Mark are accepted throughout the United States and Canada when denoting compliance with nationally recognized standards such as ANSI, IEC, UL, and CSA.
This certification mark indicates that the product has been tested to and has met the minimum requirements of a widely recognized (consensus) U.S. product safety standard, that the manufacturing site has been audited, and that the applicant has agreed to a program of periodic factory follow-up inspections to verify continued conformance.